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Machine King Prototype card prices and values
There are 5 Machine King Prototype cards and versions in our Yu-Gi-Oh price list. The most valuable is Machine King Prototype DR04-EN132 from Dark Revelation Volume 4 at about $1.00 ungraded, and the highest PSA 10 value is Machine King Prototype from Shadow of Infinity at about $36.77. Prices updated September 23, 2026.
| Card | Raw | PSA 9 | PSA 10 |
|---|---|---|---|
 Machine King Prototype DR04-EN132Dark Revelation Volume 4 · Unlimited | $1.00 | — | — |
 Machine King Prototype SOI-EN012Shadow of Infinity · 1st Edition | $0.25 | $6.00 | $36.77 |
| Machine King Prototype SOI-EN012Shadow of Infinity · Unlimited | $0.18 | $6.00 | $33.92 |
 Machine King Prototype BP03-EN019Battle Pack 3: Monster League · 1st Edition | $0.18 | — | — |
 Machine King Prototype (Shatterfoil) BP03-EN019Battle Pack 3: Monster League · 1st Edition | $0.17 | — | — |
Sorted by ungraded price. Raw prices: TCGplayer market price. Graded values: PriceCharting. A dash means we do not show a graded value for that card. This is a guide, not financial advice.
Questions
Machine King Prototype card questions
What is the most valuable Machine King Prototype card?
Machine King Prototype DR04-EN132 from Dark Revelation Volume 4 (Unlimited) at about $1.00 ungraded. The highest graded value is Machine King Prototype from Shadow of Infinity at about $36.77 as a PSA 10.
How much is a Machine King Prototype card worth?
It depends on the exact card and version. Machine King Prototype cards in our list run from $0.17 to $1.00 ungraded. Find your card by its number in the table, then open it for the full prices.